home *** CD-ROM | disk | FTP | other *** search
- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #ifndef nsIComboboxControlFrame_h___
- #define nsIComboboxControlFrame_h___
-
- #include "nsISupports.h"
- #include "nsFont.h"
-
- class nsPresContext;
- class nsString;
- class nsIContent;
- class nsVoidArray;
- class nsCSSFrameConstructor;
-
-
- // IID for the nsIComboboxControlFrame class
- #define NS_ICOMBOBOXCONTROLFRAME_IID \
- { 0x6961f791, 0xa662, 0x11d2, \
- { 0x8d, 0xcf, 0x0, 0x60, 0x97, 0x3, 0xc1, 0x4e } }
-
- /**
- * nsIComboboxControlFrame is the common interface for frames of form controls. It
- * provides a uniform way of creating widgets, resizing, and painting.
- * @see nsLeafFrame and its base classes for more info
- */
- class nsIComboboxControlFrame : public nsISupports {
-
- public:
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_ICOMBOBOXCONTROLFRAME_IID)
-
- /**
- * Indicates whether the list is dropped down
- */
- NS_IMETHOD IsDroppedDown(PRBool * aDoDropDown) = 0;
-
- /**
- * Shows or hides the drop down
- */
- NS_IMETHOD ShowDropDown(PRBool aDoDropDown) = 0;
-
- /**
- * Gets the Drop Down List
- */
- NS_IMETHOD GetDropDown(nsIFrame** aDropDownFrame) = 0;
-
- /**
- * Sets the Drop Down List
- */
- NS_IMETHOD SetDropDown(nsIFrame* aDropDownFrame) = 0;
-
- /**
- * Tells the combobox to roll up
- */
- NS_IMETHOD RollupFromList(nsPresContext* aPresContext) = 0;
-
- /**
- * Redisplay the selected text (will do nothing if text has not changed)
- */
- NS_IMETHOD RedisplaySelectedText() = 0;
-
- /**
- * Method for the listbox to set and get the recent index
- */
- NS_IMETHOD_(PRInt32) UpdateRecentIndex(PRInt32 aIndex) = 0;
-
- /**
- *
- */
- NS_IMETHOD AbsolutelyPositionDropDown() = 0;
-
- /**
- *
- */
- NS_IMETHOD GetAbsoluteRect(nsRect* aRect) = 0;
-
- /**
- * This returns the index of the item that is currently being displayed
- * in the display area. It may differ from what the currently Selected index
- * is in in the dropdown.
- *
- * Detailed explanation:
- * When the dropdown is dropped down via a mouse click and the user moves the mouse
- * up and down without clicking, the currently selected item is being tracking inside
- * the dropdown, but the combobox is not being updated. When the user selects items
- * with the arrow keys, the combobox is being updated. So when the user clicks outside
- * the dropdown and it needs to roll up it has to decide whether to keep the current
- * selection or not. This method is used to get the current index in the combobox to
- * compare it to the current index in the dropdown to see if the combox has been updated
- * and that way it knows whether to "cancel" the the current selection residing in the
- * dropdown. Or whether to leave the selection alone.
- */
- NS_IMETHOD GetIndexOfDisplayArea(PRInt32* aSelectedIndex) = 0;
- };
-
- #endif
-
-